Heater and ventilator.



. 0. JOHNSTON. HEATER AND VENTILATOE.

AAAAAAA TIOH FILED NOV. 13, 1814.

1,133,969. Patented Mar. 30,1915.

"" mum/won Johnsforl- A TTORNEYS OLIVER JOHNSTON,

or HUNTINGTON, Nnw'i onx.

HEATER AND VENTILATOR.

Application filed November 13, 1914.- Serial No.

To all whom it may concern.

Be, it known that I, OLIVER JOHNSTON, a citizen'of the United States, and a resident of Huntington, in the county of Suffolk and State of New York, have invented a new and Improved Heater and Ventilator, of which the following is a full, clear, and exact description.

.My lnvention relates to heaters to be introduced in a stove pipe and arranged to conduct smoke and other products of combustionto the chimney, or to discharge heat ed air into the room in which the heater is located.

My invention comprises a drum adapted to receive stove pipe connections at the top and bottom. A cold air inlet .pipe' also leads into the drum at the bottom from a point near the floor of the room. The air inducted through said inlet pipe. may be carried off through the top of the drum to the chimney, to effect ventilation of the room. The drum is equipped, however, with means to check the draft to the chimney after the smoke and noxious gases have passed off, and with means whereby the air taken in at the air .pipe and heated in the drum, is directed outwardly in a lateral direction into the room, together with more or less of the hot prod ucts from the stove or furnace when the smoke and noxious gases have passed off.

The invention will be particularly explained in the specific description following. Reference is had to the accompanying drawings forming part of this specification,

in which similar characters'of reference indicate corresponding parts in all the views, and in which:

Figure 1 is a perspectiveview of a heater and ventilator embodying my"in vention, portions oeing broken away 1g. 2 is a vertical section; Fig. 3 is a horizontal section on the line 3-3 Fig. 2, the upper fan being omitted; Fig. 4 is a perspective view of the bottom of the heater and itsappurtenances;

and Fig. 5 is a fragmentary detail in vertical section on the line 55 of Fig. 1.

In constructing an embodiment of my invention in accordance with the illustrated example, a drum generally designated by the numeral 10 is provided, the drum being preferably cylindrical. The bottom 11 of the drum is provided with a tubularinlet 12 adapted to be connected with a stove pipe section, and the top 13 of the drum is pro- Specification of Letters Patent.

20 at the top of thereto is a small fan 27 presenting a products and the Patented Mar. 30, 1915. 871,918.

vided with an outlet 14 ada nected with a stove pipe drum may be introduced tween two adjacent pipe sections. Leading into the bottom also is an air inlet pipe 15 WhlCh in practice will extend downwardly to a point near the floor of the room in which the heater is located. The side wall pted to be consection, so that the open at the sides at tending around the drumis a vertically movable shutter 17 slidably fitted on the shell of the drum 10, and having guided movement on the vertical bars 16 by means 8f keepers 18 on said shutter embracingsaid ars.

Communicating with the member 12 which connects with the lower stove pipe section is a tubular extension 19 in the interior of the drum. A cross-bar'or spider the .extension 19 supports a post 21, and on a collar 22 or like element on said post, is supported a sleeve 23 which forms a rest for a horizontal fan 24 arranged to turn on the post 21 beneath the top 13 of the drum. The fan 24 consists of a series of radially disposed inclined blades secured on a hub 25 which has a cross-bar 26 supported on the sleeve 23.

' Above the fan 24 and in fixed relat'ilon p rality of spiral blades disposed within the connection 14, which receives the u per stove pipe section. The upper end 0 the post 21 has a bearing in a cross-bar 28 in the member 14'. In the present example the in a stove pipe beg the upper portion. Ex-

blades of the upper fan 27 are soldered or otherwise fastened as at 29 to certain of the blades of the lower fan 24.

By the described arrangement, the shutter 7 may be maintained in the raised posiat the side,

ucts of com ustion have passed through the drum and its outlet 14 to the chimney. At the same time air will be drawn in through the inlet pipe 15 and carried oif through the chimney, thereby ventilating the room. Upon the shutter 17 being lowered, how'- ever, after the smoke and noxious gases have passed off, more or less of the hot air drawn in'through the inlet pipe 15 will pass laterally outward into the room. The draft through the stove pipepassing therethrough, will more or less.

check the draft through the drum outlet 14, so that a material portion of the hot products may be available for the heating of the room.

To prevent the possibility of sparks being carried outward throughthe drum, the open portion of the latter is provided with, a 30. In order to sustain the annular screen shutter 17 in the raised position, any suitable fastener may be provided; I have shown for this purpose a catch member 31 formed by an outward bulging of the flange of the cap 13. To engage the catch member 31,,the shutter 17 is formed with a depression 17 a and an offset 17, the formation resulting in proper engagement with the catch member 31. To raise and lower the shutter I provide a suitable handle 32. I provide means for holding the fan 2 f from turning 'when the shutter 17 is closed, The means employed consists of a stop movable into and out of engagement with the fan. As here shown, the stop is in the form of a pin 33 attached to a chain 34, one end of which is secured to an eye 35 or equivalent-on the top 13 of the drum. The pin 33 is adapted to be inserted 36 in the top 13 to project between adjacent blades of the fan.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is: l

1. Ina heater and ventilator, a drum having an inlet and an outlet at the bottom and top respectively, adapted for connection with stove pipe sections, a lateral open portion, a movable closurefor said open portion, and a fan in the drum at the open portionthereof, arranged to force air and gases from the drum outwardly through said open portion.

.2. In a heater and ventilator, a drum havoutlet at the bottom and ing an inlet and an adapted for connection top respectively,

\ with stove pipe sections, said drum beingv closed at its lower portion and open at the upper portion at the sides, a tubular closure for said open portion, the closure being slidable on the drum, and a fan disposed transversely in the'drum at the said open portion,

with stove pipe sections,

. ally through the open portion downwardly through a hole 'fan in the drum said drum having .and having its blades so disposed as to force ing a tubular inlet at the bottom and a tuadapted to connect bular outlet at the top,

said drum being open laterally adjacent to the top of the I drum, movable means for closing the opening, a fan transversely disposed in the drum adjacent to the lateral opening and a second fan disposed in the tubular outlet and in fixed relation to the first fan, said first fan having its blades disposed so 'as to force air and gases outwardly from the drum laterthereof. 1.;In a heater and ventilator, a drum having an inlet and an outlet at the bottom and top respectively, adapted for connection said drum having with stove pipe sections,

a movable closure a lateral open portion, for said open portion, an air inlet pipe leading into the drum at the bottom, and a fan in the drum at the open portion thereof, arranged to force air and gases from the drum outwardly through said open portion.

5. A heater and ventilator comprising a drum having an inlet at the bottom and an outlet at the top adapted to connect with stove pipe sections, 'an' air inlet at the bottom of the drum, said drum presenting. an annular open vportion below the top, bars extending across the open portion and sup,- porting the top, guided movement on certain of said bars to cover or uncover said open portion, and a at the open portion, arranged to force air and gases from the drum outwardly through said open portion.

6. In a heater and ventilator, a drum having an inlet and an outlet at the bottom and top respectively, adapted 'for connection with stove pipe sections, said drum having a laterally open portion, a movable closure for said open portion, an air inlet leading into the drum at the bottom, a fan in the drum at the open portion thereof, and a stop on the drum, the stop being movable into or out of engagement with the said fan to arrest the same or permit rotation thereof.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ABRAHAM L. FIELD, Lo'r'rm K. HEARTT.

a tubular shutter having 

